Products & Platforms
Products Mathew built and shipped at Frontiers Market and at Firefly Events, co-founded by Mathew Dostal and Don Matthews, plus the AI crew and tooling we're building right now, in the open.
Where this work has shipped

6,000% throughput increase (Hertz) · $5M+ supply-chain savings contribution (Wayfair — one of several initiatives)
Separate product · Start here
The Audit Report: Know Where You Actually Stand
An audit of your site and online presence, and the entry point to everything we help with.
Researched and quality-checked by our audit system, with every finding labelled by its evidence. Want a person's read? Add an Expert review. The Base report runs 30+ pages. The Base report covers site inventory, performance, security, SEO, accessibility, geographic scope and local position. The Full report adds competitors, positioning, pricing, marketability and more.
A short brief and the full PDF
Both arrive by email.
Part 1: verified facts
What we found, with sources.
Part 2: labelled judgment
Our read, marked as judgment so you can tell it from the facts.
We Build and Run Our Own Products, and We'll Build Yours
The same people and practices you'd hire, running on real products of our own.

Content platform · with Don Matthews and Firefly Events
flayr
One idea goes in, and finished content for every channel comes out.
Make on-brand posts with AI and schedule them to 13 platforms. We run our own brands on it.
- AI content
- Scheduling
- 13 platforms

Agent framework · Open-source secret broker
Pantheon + Portunus
An AI crew that ships software, and a broker that keeps secrets out of its reach.
Pantheon is the agent layer behind how we plan, build, test, and ship. Portunus, its open-source piece, injects a secret only at the execution boundary, never inside an LLM or agent context.
- AI agents
- Secret broker
- Open source

Spec-driven dev plugins · Built by Don Matthews at Firefly Events
Hive
A coordinated team of AI specialists for planning, building, testing, and review.
A public Claude Code plugin that gives agent work the discipline of a real software team, from kickoff to ship. Our own engineering runs on it.
- Claude Code
- Codex
- Multi-agent

Free, open-source utilities
tools.mdostal.com
Small, sharp tools, built and shipped in public.
Live utilities including Allergy Locator, Mapstack US map layers, and a component framework for drone property work.
- Open source
- Live tools
- Public repos

Separate product · Start here
Audit Report
An audit of your site and online presence, delivered by email.
A short brief plus the full PDF: verified facts with sources, then labelled judgment. Researched and quality-checked by our audit system. The Base report runs 30+ pages.
- Performance
- Security
- SEO
- Email delivery

Merch · Opening soon
The Dragon Shop
Dragon-branded, 3D-printed maker goods, designed, printed, and shipped by hand.
Our own storefront, powered by Mercatus Liber, our open-source commerce project. The early access list is open now.
- 3D printing
- Printed to order
- Mercatus Liber
Slide 1 of 6: flayr
What I'm Building Right Now
I built my own AI crew that plans, writes, tests, and ships software with me — and a separate piece that hands that crew passwords and API keys safely, so nothing sensitive ever sits exposed where an AI could read or leak it.
Pantheon
UmbrellaThe crew — umbrella platform
The shared agent/plugin layer the pieces below plug into — not a single product, the crew itself.
Heimdall
In active buildAI provider routing
Health-aware routing across AI provider lanes — tracks what’s up, down, or out of credit, and recovers automatically.
Consus
In active buildDecision surface
Reads the crew’s open decisions and renders a verdict — the human-in-the-loop review layer for what the agents can’t rubber-stamp themselves.
Dostal Swarm / Orchestration
Shipping through the rest of 2026Multi-agent orchestration
Swarm tooling and the orchestration layer tying the individual pieces into one working crew.
Tools — free at tools.mdostal.com
Small, open utilities Pantheon can pull in.
Component framework for drone property intelligence — map layers, 3D/point-cloud viewer, video walkthroughs.
Open-source US map layers — pick datasets, overlay them, find what matters.
Ranks paid clinical-trial studies by net cash kept and cash velocity, not the headline "up to $" figure.
Tracks and finds matching fractional/contract roles across the sources you enable, on a schedule.
Helps identify and locate lost BTC wallets.
Proof & Depth
Two ecosystems built end-to-end, mobile releases shipped across a dozen clients, and the client work underway right now.
Frontiers Market Ecosystem
Head of Engineering & Principal Architect
Edge AI NVR System
Raspberry Pi clusters for capture/recording with custom NVR software, RTSP video pipelines, and Nvidia Jetson for on-device computer-vision inference; store-and-forward for offline operation. Proprietary hardware architecture for livestock monitoring.
Escrow & Payment Rails
Stripe Connect "Separate Charges and Transfers" for trustless escrow on six-figure livestock transactions.
Livestock Mobile App
Native Swift app with on-device computer vision (Core ML), cattle identification, offline-first with store-and-forward sync.
Since removed
Marketplace Platform
Multi-tenant cattle trading platform with registry, lineage tracking, real-time inventory.
Main Site
Marketing and landing pages for the Frontiers Market ecosystem.
Firefly Events Ecosystem
Co-founder & CTO
Shindig
Kotlin Multiplatform event discovery app. Aggregates Ticketmaster, Eventbrite, Facebook. Geo-spatial search, 8000+ daily events.
Reserved
Multi-tenant SaaS for venue reservation management. Dynamic rules engine for complex regulatory compliance (NYC block laws).
Tabletop Archive (TTA)
P2P rental marketplace for gaming equipment. Stripe escrow, state machine inventory, shipping verification.
Firefly Main
Company website for the Firefly Events ecosystem.
Mobile Releases
Shipped mobile apps and platforms across clients and ecosystems.
Mobile DevOps pipelines and CI/CD platform engineering for a national department-store chain’s mobile commerce apps.
Hybrid mobile app for a European vacation-rental marketplace — property discovery and booking workflows.
Hybrid mobile app (iOS/Android) for a concierge services platform.
Native iOS app for cattle ID and marketplace management, with on-device computer vision and offline-first sync.
Mobile apps and web portals for utility account management, payments, and service stats.
Client Releases
Fractional-CTO client engagements — separate from the ecosystems above, tracked here at whatever stage they're actually at.
Want This Built for You?
Everything above ships through the same fractional-CTO engagement model — embedded technical leadership sized to what your company actually needs, from a few hours a month of advisory to full interim coverage.
More detail: résumé, portfolio, and the companies wall.